What are good topics for an informative speech that has to be six minutes long?
An informative speech is a presentation in which the speaker shares their knowledge or expertise for the purpose of educating an audience. For instance, if you went to a presentation titled "5 Creative Ways to Save Money," that would be an informative speech because you've gone there to learn something from the speaker.
When it comes to choosing a topic for your speech, there's really no such thing as a "good" or "bad" topic. Instead, think about potential topics that interest you or those that you know something about. If you know a lot about cooking, you could choose a particular meal that you know how to cook very well and use that as your topic. This doesn't mean that you can't pick something new to learn about, but you want to be sure that you know enough about it to share new information with your audience that they don't already know from general knowledge.
If you only have six minutes, it would probably be wise to narrow your topic down to something very specific. If you were giving a speech on the American Revolutionary War, for example, you might choose a single aspect of the war like the significance of a particular battle or individual. The reason for this is because when you choose a big topic and only have six minutes, you'd probably just end up sharing general information that the audience already knows.
Finally, think about how you structure your speech. If you have six minutes, imagine that you'll use the first minute to introduce your topic and the last minute to draw conclusions, which means you really only have four minutes. Once you've settled on your topic and narrowed it down, find three or four interesting or important aspects that you can spend a minute or two discussing.